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Resintered fused silica brick and method of producing the same

A manufacturing method and technology of fused silica, applied in the field of refractory materials for glass-ceramics melting furnaces, can solve problems such as damage to glass melting furnaces, deformation and cracking, and achieve the effects of ensuring normal operation, good thermal stability and thermal shock resistance

Inactive Publication Date: 2008-05-07
孙邢哲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the refractory material in the flame space of the existing glass-ceramic melting furnace deforms and cracks due to repeated expansion and contraction under temperature changes, and damages the glass melting furnace. Durable refired fused silica brick and method of making the same

Method used

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  • Resintered fused silica brick and method of producing the same

Examples

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Comparison scheme
Effect test

Embodiment 1

[0061] The manufacturing method of the resintered fused silica brick of the present invention comprises the following steps:

[0062] a. Crushing Use a crusher to crush SiO 2 ≥99.5% fused silica raw material, crushed into the following two particle size ranges: particle size 3-1mm and particle size 1-0mm;

[0063] b. Grinding Use a ball mill to further grind the raw materials with a particle size of 1-0mm into a fine powder with a particle size of 325 mesh;

[0064] C, iron removal uses a magnetic separator to remove the iron oxide that occurs in the steps a and b;

[0065] d. The ingredients are in parts by weight, and the ingredients are mixed according to the following ingredients and particle level,

[0066] Fused silica: 50 parts with a particle size of 3-1mm, 10 parts with a particle size of 1-0mm, and 40 parts with a particle size of 325 mesh;

[0067] 1.2 parts of fine mineral powder; 6.5 parts of silica sol;

[0068] e. Stuck materials Put the prepared and mixed r...

Embodiment 2

[0074] In the present embodiment and the following examples, the steps identical to those in Example 1 are not repeated for saving space, and only the differences are described as follows:

[0075] The batching of the inventive method is: fused silica: 55 parts of particle size range 3-1mm, 10 parts of particle size range 1-0mm, 35 parts of particle size 325 mesh;

[0076] 1.5 parts of fine mineral powder; 6 parts of silica sol.

Embodiment 3

[0078] The batching of the inventive method is: fused silica: 60 parts of particle size 3-1mm, 15 parts of particle size 1-0mm, 35 parts of particle size 325 orders;

[0079] 1.7 parts of fine mineral powder; 5.5 parts of silica sol.

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Abstract

The invention discloses a re-sintering meltdown quartz brick and the manufacturing method thereof, and solves the problem that the fire resisting material of the prior microlite glass melt kiln flame space position deforms and cracks due to the expansion and the shrinking under the temperature changing condition so as to damage the glass melt kiln. The re-sintering meltdown quartz brick of the invention comprises the components according to the following weight parts: meltdown quartz of 50 to 60 parts with granularity of 3 to 1 mm, meltdown quartz of 10 to 20 parts with granularity of 1 to 0 mm, mineralized powder of 1 to 2 parts and caking agent of 4 to 7 parts. The invention is suitable for the fire resisting material of the microlite glass melt kiln flame space position.

Description

Technical field [0001] The present invention relates to a refractory material for a crystallized glass melting furnace, and in particular to a resintered fused quartz brick and a manufacturing method thereof. Background technique [0002] The main manufacturing equipment for glass-ceramics is the glass melting furnace. Crystallized glass, especially transparent glass-ceramics, has very good heat resistance and high strength. The production process of glass-ceramics not only requires high Melting temperature (1600℃), and the melting temperature often changes in the range of 200℃-1600℃. Therefore, the performance requirements of the refractory material in the flame space of the glass melting furnace are very high. [0003] At present, my country's glass-ceramic manufacturers only have high-quality silica bricks as the choice of refractory materials for the flame space of glass melting furnaces. As a refractory material, silica bricks are affected by temperature changes during...

Claims

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Application Information

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IPC IPC(8): C04B35/66C04B35/14
Inventor 孙邢哲
Owner 孙邢哲
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